Assembly: mscorlib (in mscorlib.dll)
A FileSecurity object that describes an ACL entry to apply to the current file.
The file is closed.
The fileSecurity parameter is a null reference (Nothing in Visual Basic).
The file could not be found or modified.
The current process does not have access to open the file.
While the FileStream class and SetAccessControl can be used on an existing file, consider using the File.SetAccessControl method as it is easier to use.
The SetAccessControl method applies access control list (ACL) entries to a file that represents the noninherited ACL list.
The ACL specified for the fileSecurity parameter replaces the existing ACL for the file. To add permissions for a new user, use the GetAccessControl method to obtain the existing ACL, modify it, and then use SetAccessControl to apply it back to the file.
An ACL describes individuals and/or groups who have, or do not have, rights to specific actions on the given file. For more information, see ACL Technology Overview and How to: Add or Remove Access Control List Entries.
Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.